72478880

素因数分解:

$2^5\times 5^1\times {\mathrm{317}}^1\times {\mathrm{1429}}^1$

素因数の和:1761

約数の個数: 48

約数和(自身を含む): 171891720

約数和(自身を除く): 99412840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 317, 634, 1268, 1429, 1585, 2536, 2858, 3170, 5072, 5716, 6340, 7145, 10144, 11432, 12680, 14290, 22864, 25360, 28580, 45728, 50720, 57160, 114320, 228640, 452993, 905986, 1811972, 2264965, 3623944, 4529930, 7247888, 9059860, 14495776, 18119720, 36239440, 72478880]

約数ペア:

[(1, 72478880), (2, 36239440), (4, 18119720), (5, 14495776), (8, 9059860), (10, 7247888), (16, 4529930), (20, 3623944), (32, 2264965), (40, 1811972), (80, 905986), (160, 452993), (317, 228640), (634, 114320), (1268, 57160), (1429, 50720), (1585, 45728), (2536, 28580), (2858, 25360), (3170, 22864), (5072, 14290), (5716, 12680), (6340, 11432), (7145, 10144)]